Improvement in cartridge-cases



SQW. WOOD.

Improvement in Cartridge Cases Patented Oct. 15,1872.

: NITED STATES PATENT. DFFICE.

STEPHEN W. WOOD, or CORNWALL, NEW YORK.

IMPROVEMENT IN CARTRIDGE-CASES.

Specification forming part of Letters Patent No. 132,227, dated October15, 1872.

To all whom it may concern:

Be it known that I, STEPHEN W. WOOD, of (lornwall, county of Orange andState of New York,'have invented a new and Improved (Jase for aCartridge; and I do hereby declare that the following is a full, clear,and exact drawn or elongated to impart thereto elasticity or a springtemper, and a head or flange formed thereon; Fig. 4 is likewise acentral longitudinal section of the same, having been drawn or reducedand its front or open end necked to receive a ball smaller than the mainbody of the case, and an anvil formed thereon to receive thepercussion-cap, and having also a flange, as shown; Fig. 5 is a sectioncorresponding with that of Fig. 4, showinga patched ball in position,and the cart-ridge otherwise completed and ready for use; Fig. 6represents a metallic case for a cartridge, cast of ductile metal andtapered; Fig. 7 is a patched ball detached; and Fig. 8 represents ametallic case for a cartridge, the body of which being straight or of aregular taper, as in Fig. 6, and provided with a ball smaller than thediameter of the front or open end of the case, and the space around theball and between it and the inner periphery being filled with a thickpatch or its equivalent, by

which means a small ball may be used in a case of greater diameter.

Like letters indicate corresponding parts in all of the figures.

My invention relates to casting a case for a cartridge of ductile metal,and drawing'the same by punch and die or in any other suitable manner toelongate and to impart elasticity thereto.

A in the accompanying drawing represents a case for a cartridge cast ofductile metal, and re-enforced by casting the base thicker than thewalls or body of the case, as represented in dotted lines,.Fig. 1. Inthis instance the re-enforce is mainly on the exterior of the case, asat B. The re-enforce B, instead of being cast, may be formed thereon byupsetting the metal in the usual manner. In Fig. 2 the case is shownwithout the projecting re-enforce B, so that it maybe drawn or elongatedand tapered,if desired, to fit the chamber of the gun, and an elasticproperty imparted thereto by being drawn in any suitable manner, afterwhich the flange B may be formed thereon. Fig. 3 represents the casecast of ductile metal after having been drawn to shape and to producethe elastic property, and having an anvil, (1, formed on the exterior ofthe center of its base, and a narrow flange, b, of the usual width, bywhich to withdraw the empty case from the chamber of the gunafter thedischarge. In Fig. 4 the cast case A, of ductile metal, is representedas having been drawn to produce the required elastic property, an anvil,d, and'flange 1) formed upon the base thereof, and being smaller at thefront or open end e to receive and hold a ball smaller than the'mainbody of the case A. Fig. 5is a reproduction of Fig. 4, provided withpatched ball u, powder, and percussion-cap. Fig. 6 represents a case fora cartridge cast of ductile metal, and drawn, headed, and tapered by anyof the known methods. In Fig. 7 the ball a is detached and provided witha patch,

1', of any suitable material.

To prevent stripping the thick patch 0 from the ball when the dischargetakes place, a wide groove may be formed in the periphery of the ball,near its base, to receive and hold the patch in place, or the patch mayextend over the front end of the ball, as in Fig. 7.

The patch 0 may be made of rubber, fibrous material, or any substancesuitable for the purpose.

Having thus case for a cartridge, what I claim therein as new, anddesire to secure by Letters Patent, 1s

1. A case for a cartridge,with or without an anvil, cast of ductilemetal, and having imparted thereto a fibrous and elastic property,substantially as herein set forth.

2. A case for a cartridge, cast of ductile metal, whose open or frontend is smaller than the main body thereof, when said case has a fibrousand elastic property imparted thereto, substantially as and for thepurpose herein set forth.

STEPHEN W. WOOD.

Witnesses:

WM. H. RIBLET, MORTIMER J. ENNIS.

fully described my improved

